Question

96men were engaged building a wall of length 18km in four weeks.After a week only 4km wall was finished.How many extra men need to be engaged to finish the work in time?​

Answer 1

Answer:

16

Step-by-step explanation:

3.5 week = 3weaks left

3.5/9 = 7/6 = 1/6

multiple now

Answer 2

Answer:

16 men

Step-by-step explanation:

Work completed by 96 men in 1 week=4km

Work completed by 96 men in 4 weeks=16km

Remaining work= 2km

Number of men required to complete 2 km of work in 1 week =48 (As 96 men for 4km)

But we have 3 weeks for completion of work (Since additional men join after 1 week of starting [4-1=3])

Therefore, no of men=48/3=16  men [if they work for 3 weeks they will complete the 2 km remaining work].

hope this helps you!!